<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>Document</title>
    <script src="../../../vue.js"></script>
  </head>

  <body>
    <div id="app">
      <button @click="addTea">添加一个数据</button>
      <ul>
        <li v-for="item,index in teachers" :key="item.id">
          <h2>我的名字是{{item.name}}</h2>
          <p>我的爱好是{{item.hobby}}</p>
        </li>
      </ul>
    </div>
    <script>
      Vue.config.productionTip = false;

      const vm = new Vue({
        el: "#app",
        data() {
          return {
            teachers: [
              { id: 1, name: "余维海", hobby: "金城会所" },
              { id: 2, name: "陈伟", hobby: "888号为您服务" },
              { id: 3, name: "老李", hobby: "学习讲课" },
            ],
          };
        },
        methods: {
          addTea() {
            const newTea = { id: 4, name: "婉丽", hobby: "逛街" };
            this.teachers.unshift(newTea);
          },
        },
      });
    </script>
  </body>
</html>
